Ameloblastic fibro-odontoma: a case report

Ameloblastic fibro-odontoma (AFO) is a rare mixed odontogenic tumor consisting of both ectodermal and mesenchymal components. It occurs predominantly in children and adolescents, especially in the mandibular posterior region. Histopathologically,AFO exhibits the combination of ameloblastic fibroma-like tissue and complex odontoma. A case of AFO in a 1-year-old child was presented. It produced an expansile lesion over the upper right anterior region and showed typical histopathological features of AFO. She was treated by enucleation with no recurrence observed after a follow-up period of 1 year.

1. Kramer IRH, Pindborg JJ, Shear M. Histological typing of odon-togenic tumors. World Health Organization International Classification of Tumours. 2nd ed, pp18. Berlin, Springer-Verlag, 1992.

2. Slootweg PJ. An analysis of the interrelationship of the mixed odontogenic tumors-ameloblastic fibroma, ameloblastic fibro-odontoma, and the odontomas. Oral Surg Oral Med Oral Pathol 51: 266-76, 1981.

3. Hansen LS, Ficarra G. Mixed odontogenic tumors: an analysis of 23 new cases. Head Neck Surg 10: 330-43, 1988.

4. Gunhan O, Celasun B. Ameloblastic fibro-odontoma. Case report. Aust Dent J 34: 29-31, 1989.

5. Baker WR, Swift JQ. Ameloblastic fibro-odontoma of the ante-rior maxilla: report of a case. Oral Surg Oral Med Oral Pathol 76: 294- 7, 1993.

6. Miyauchi M, Takata T, Ogawa I, Ito H, Nikai H, Ijuhin N, Tanimoto K, Miyauchi S. Immunohistochemical observations on a possible ameloblastic fibro-odontoma. J Oral Pathol Med 25: 93- 6, 1996.

7. Favia GF, Di Alberti L, Scarano A, Piattelli A. Ameloblastic fibro-odontoma: report of two cases. Oral Oncol 33: 444-6, 1997.

8. Philipsen HP, Reichart PA, Praetorius F. Mixed odontogenic tumors and odontomas. Considerations on interrelationship. Review of the literature and presentation of 134 new cases of odontomas. Oral Oncol 33: 86-99, 1997.

9. Chang H, Precious DS, Shimizu MS. Ameloblastic fibro-odontoma: a case report. J Can Dent Assoc 68: 243-6, 2002.

10. Piette EM, Tideman H, Wu PC. Massive maxillary ameloblastic fibro-odontoma: case report with surgical management. J Oral Maxillofac Surg 48: 526-30, 1990.

11. Ozer E, Pabuccuoglu U, Gunbay U, Sarioglu S, Aktas S. Ameloblastic fibro-odontoma of the maxilla: case report. J Clin Pediatr Dent 2: 329-31, 1997.

12. Hutt PH. Ameloblastic fibro-odontoma: report of a case with documented four-year follow-up. J Oral Maxillofac Surg 40: 45-8, 1982.

13. Hawkins PL, Sadeghi EM. Ameloblastic fibro-odontoma: report of case. J Oral Maxillofac Surg 44: 1014-9, 1986.

14. Kitano M, Tsuda-Yamada S, Semba I, Mimura T, Nozoe E, Setoyama M. Pigmented ameloblastic fibro-odontoma with melanophages. Oral Surg Oral Med Oral Pathol 77: 271-5, 1994.

15. Okura M, Nakahara H, Matsuya T. Treatment of ameloblastic fibro-odontoma without removal of the associated impacted per-manent tooth: report of cases. J Oral Maxillofac Surg 50: 1094-7, 1992.

16. Takeda Y. Ameloblastic fibroma and related lesions: current pathologic concept. Oral Oncol 35: 535-40, 1999.

17. Eversole LR, Tomich CE, Cherrick HM. Histogenesis of odonto-genic tumors. Oral Surg Oral Med Oral Pathol 32: 569-81, 1971.

18. Gardner DG. The mixed odontogenic tumors. Oral Surg Oral Med Oral Pathol 58: 166-8, 1984.

19. Cahn LR, Blum T. Ameloblastic odontoma: case report clinically analyzed. J Oral Surg 10: 169-70, 1952.

20. Miller AS, Lopez CF, Pullon PA, Elzay RP. Ameloblastic fibro-odontoma: report of seven cases. Oral Surg Oral Med Oral Pathol 41: 354-65, 1976.